Encode Text, Files, Images, and URLs to Base64 - One Tool for All
Supports: All file types (PDF, Excel, Word, etc.)
Base64 encoding converts binary data to ASCII text format, making it safe for transmission over text-based protocols.
One tool to encode everything: text strings, files (PDF, Excel, Word), images, and URLs.
URL-safe option replaces + with -, / with _, and removes padding for use in URLs and filenames.
Hop to nearby dev utilities without losing context.
Quick steps so you can get results fast.
Type, paste or upload the text, code or file the tool works on.
Pick the format, action or settings the tool offers for your task.
Review the result next to your input before using it.
Copy the result to the clipboard or download it where the tool offers a download.
Everything you need to know about Universal Encoder.
Answers to the most common devtool questions.
No. This tool runs in your browser with JavaScript, and what you type or paste is not sent to ToolzStack servers. Page visits are measured with Google Analytics, as described in the Cookie Policy.
Your input stays in the page while it is open. A few tools keep a short history or favourites in the local storage of this browser; you can clear it in the tool or in your browser settings.
Use Report a Bug on the page or the contact form, and include a sample input that shows the problem (remove anything sensitive first).